On F-index of Certain Generalized Thorny Graphs

Autor: D. Sarala, C. Natarajan, S. K. Ayyaswamy, S. Balachandran
Rok vydání: 2020
Předmět:
Zdroj: Proceedings of the National Academy of Sciences, India Section A: Physical Sciences. 91:269-272
ISSN: 2250-1762
0369-8203
DOI: 10.1007/s40010-020-00671-3
Popis: Let $$G=(V,E)$$ be a graph with n vertices and m edges. The forgotten topological index or F-index of G is defined as $$F(G) =\sum \limits _{v \in V(G)}d_{G}(v)^{3}=\sum \limits _{uv\in E(G)} \left[ d_G(u)^2+d_G(v)^2\right] $$ where $$d_G(v)$$ stands for the degree of the vertex v in G. In this paper, we compute the F-index of certain generalized thorny graphs.
Databáze: OpenAIRE
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